RT Journal Article
T1 Stellar population study in early-type galaxies: an approach from the K band
A1 Mármol Queraltó, Esther
A1 Cardiel López, Nicolás
A1 Sánchez Blázquez, P.
A1 Trager, S.C.
A1 Peletier, R. F.
A1 Kuntschner, H.
A1 Silva, D. R.
A1 Cenarro, A. J.
A1 Vazdekis, A.
A1 Gorgas García, Francisco Javier
AB A full understanding of the physical properties of integrated stellar systems demands a multiwavelength approach since each spectral window shows us the contribution of different types of stars. However, most of the observational effort in stellar population studies has been focused on the optical range. Now, the new generation of instruments allow us to explore the K band, where RGB and AGB stars dominate the light of the integrated spectra. Here we present a K-band spectroscopic analysis of early-type galaxies in different environments. Our sample comprises 12 field early-type galaxies observed with ISAAC at VLT with medium resolution, and they are compared with 11 Fornax cluster galaxies previously reported by Silva et al. (2008). The clear differences found in the infrared DCO and NaI indices between field and Fornax galaxies are discussed, trying to solve the puzzle formed by the near-infrared and optical measurements.
PB Cambridge Univ. Press
SN 1743-9213
YR 2009
FD 2009-08
LK https://hdl.handle.net/20.500.14352/43008
UL https://hdl.handle.net/20.500.14352/43008
LA eng
NO © International Astronomical Union 2010. Symposium of the International-Astronomical Union (262nd; 2009; Rio de Janeiro, Brazil).
DS Docta Complutense
RD 27 jul 2024